(a species of owlet moth (Noctuid)) Some caterpillars, after they emerge from their egg, can increase their weight by 25,000 times.

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Green gifts

Duck shower timer

Duck Shower Timer Tmb

Make saving water easy and measurable with this fun shower timer. Heating and pumping water costs money, but there's not just a financial cost involved. A typical power-shower uses 15 litres of water per minute and baths typically use 88 litres in one go, not forgetting the carbon dioxide emitted into the atmosphere during the process.

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Duck shower timer

£ 9.79

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Switching from bathing to a 4 minute shower saves as much as 28 litres of water each time. This battery-operated model features an alarm to alert you when your shower time is up. The timer is steam proof and waterproof, with strong suction cups that holds it fast to any non-porous surface, such as bathroom tiles.